Workers' Compensation Insurance 2026State Requirements, Costs & Classification Rules
Workers' compensation insurance is legally required for nearly every employer in the United States. It pays medical bills and lost wages for employees injured on the job — and protects businesses from workplace injury lawsuits. Get the state requirements, premium calculation methods, and cost ranges for 2026.
What Is Workers' Compensation Insurance?
Workers' compensation insurance is a state-mandated coverage that pays for medical treatment, rehabilitation costs, and a portion of lost wages when an employee is injured or becomes ill due to their job. In exchange for these benefits, employees generally cannot sue their employer for workplace injuries — this is known as the "exclusive remedy" doctrine.
Workers' comp also includes employer's liability coverage (Part B of the policy), which protects against lawsuits that fall outside the exclusive remedy — such as claims by injured family members, or dual-capacity claims where the employer also manufactured a defective product.
ℹ The Exclusive Remedy Doctrine
State Requirements: Who Must Carry Workers' Comp
Texas Is the Only Opt-Out State
| State | Threshold / Requirement | Market Type | Notes |
|---|---|---|---|
| California | 1+ employee | Competitive | Strict employee classification; high rates for construction |
| Texas | Optional (most employers) | Competitive | Only state where WC is not mandatory for most private employers |
| Florida | 1+ employee (construction); 4+ (non-construction) | Competitive | Construction industry has strict enforcement |
| New York | 1+ employee | Competitive | High rates; strict enforcement; separate disability law |
| Ohio | 1+ employee | Monopolistic | Must purchase from State Insurance Fund (BWC); private insurers excluded |
| Washington | 1+ employee | Monopolistic | L&I (Dept. of Labor & Industries) is exclusive provider |
| North Dakota | 1+ employee | Monopolistic | Workforce Safety & Insurance (WSI) is exclusive provider |
| Wyoming | 1+ employee | Monopolistic | Wyoming Workers' Comp Division is exclusive provider |
| Illinois | 1+ employee | Competitive | High legal environment; Chicago surcharges common |
| Georgia | 3+ employees | Competitive | Small exemption threshold; agriculture has separate rules |
| Alabama | 5+ employees | Competitive | One of the highest employee-count thresholds |
| South Carolina | 4+ employees | Competitive | Agricultural workers often exempt |
How Workers' Comp Premiums Are Calculated
Workers' compensation premiums are calculated using a standardized formula based on three factors: your payroll, the class code assigned to your employees' work activities, and your experience modification rate (EMR).
Premium Formula
(Payroll ÷ 100) × Class Rate × Experience Mod
Plus state assessments, surcharges, and minimum premium (if applicable)
Step 1: Class Codes
Every type of work is assigned a 4-digit class code (NCCI codes are used in most states). The code determines the base rate per $100 of payroll. High-risk occupations have much higher rates than low-risk ones.
| Occupation | NCCI Code | Approx. Rate per $100 Payroll |
|---|---|---|
| Office/Clerical | 8810 | $0.20 – $0.50 |
| Software Developer | 8871 | $0.15 – $0.40 |
| Retail Store (not food) | 8017 | $1.50 – $2.50 |
| Restaurant Kitchen Staff | 9083 | $3.50 – $6.00 |
| Electrician | 5190 | $4.00 – $8.00 |
| General Contractor | 5403 | $8.00 – $15.00 |
| Roofer | 5551 | $18.00 – $30.00+ |
| Logging | 2702 | $25.00 – $40.00+ |
Rates are estimates and vary by state. Contact your carrier or NCCI for current rates in your state.
Step 2: Experience Modification Rate (EMR)
The EMR (also called the experience mod or X-mod) compares your actual claims over the past 3 years to expected claims for a business of your size and industry. An EMR of 1.00 is average. Below 1.00 means you've had fewer claims (you get a discount). Above 1.00 means more claims than average (you pay a surcharge).
0.75
25% premium discount
1.00
Average — no adjustment
1.40
40% premium surcharge
Return-to-Work Programs Reduce Your EMR
Sole Proprietors, Partners & Independent Contractors
Sole Proprietors
In most states, sole proprietors without employees are exempt from the workers' comp mandate. However, many general contractors and project owners require all subs — including sole proprietors — to carry workers' comp to avoid being treated as a de facto employer. You can elect to include yourself on a workers' comp policy for your own injury protection.
1099 Contractors vs. W-2 Employees
The distinction between independent contractors (1099) and employees (W-2) is one of the most litigated issues in workers' comp law. If a state agency determines that you misclassified employees as contractors, you can be held liable for unpaid premiums, back assessments, and penalties — plus uncovered injury claims.
Corporate Officers & LLC Members
Corporate officers and LLC members can often exclude themselves from workers' comp coverage, but the rules vary by state. In some states (like Florida), construction industry officers cannot exclude themselves. Exclusions must be filed with the insurer and may need to be re-elected annually. Check your state's specific officer exclusion rules.
Monopolistic State Funds
In four states — Ohio, Washington, North Dakota, and Wyoming — all workers' compensation coverage must be purchased from the state-operated fund. Private insurers are not permitted to offer workers' comp in these states.
Ohio
Bureau of Workers' Compensation (BWC)
bwc.ohio.gov
Washington
Department of Labor & Industries (L&I)
lni.wa.gov
North Dakota
Workforce Safety & Insurance (WSI)
workforcesafety.com
Wyoming
Wyoming Workers' Compensation Division
wyomingworkforce.org
Multi-State Employers in Monopolistic States
Penalties for Non-Compliance
Operating Without Workers' Comp Is a Serious Risk
Workers' Compensation Insurance FAQs
Is workers' compensation required for all businesses?
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Workers' compensation is required in every U.S. state except Texas, where it is optional for most private employers. However, even in states that technically allow exemptions (such as only having family employees or being below an employee threshold), the risk of operating without coverage is significant — an uninsured work injury can result in personal liability and severe penalties. Federal contractors and certain regulated industries have separate mandatory requirements.
How is my workers' comp premium calculated?
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Workers' comp premiums are calculated using this formula: (Payroll / 100) × Class Code Rate × Experience Modification Factor (EMR). Your class code is determined by your industry and the type of work employees perform. Higher-risk classifications (roofers, loggers) carry much higher rates than low-risk ones (office clerks). The experience mod compares your claims history to your industry peers — below 1.0 means you've had fewer claims than average (premium discount), above 1.0 means more claims (premium surcharge).
Do I need workers' comp if I'm a sole proprietor with no employees?
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Generally, sole proprietors without employees are not legally required to carry workers' comp in most states. However, you can choose to include yourself for coverage of your own injuries. Many state licensing boards and project owners require contractors to carry workers' comp regardless of whether they have employees, to avoid being classified as an employer. Some states, like California and New York, have specific rules requiring certain sole proprietors in high-risk industries to carry it.
Can I use 1099 contractors instead of employees to avoid workers' comp?
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Worker classification is a complex legal issue that varies by state. Simply calling someone a 1099 contractor does not automatically exempt them from workers' comp if a court or state agency determines they were actually an employee. California, New Jersey, and several other states use very strict tests (such as the ABC test) that presume most workers are employees. Misclassification can result in back premiums, penalties, and personal liability for uninsured injuries.
What are monopolistic state funds and how do they affect me?
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Four states — Ohio, Washington, North Dakota, and Wyoming — operate monopolistic state workers' comp funds. In these states, private insurers cannot sell workers' compensation insurance; employers must purchase coverage exclusively from the state fund. If you operate in multiple states including one of these monopolistic fund states, you'll need to purchase workers' comp separately from that state's fund in addition to your primary commercial policy. Make sure your multi-state policy has 'Other States' coverage for the non-monopolistic states.
Sarah Mitchell
Editorial Lead, Property & Casualty
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed June 2026
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Important Disclaimer
This site provides general educational information only and is not a substitute for professional insurance advice. All rates, data, and coverage details are estimates and may not reflect your actual premiums. Insurance availability and pricing vary by state, insurer, and individual risk factors. Always consult a licensed insurance professional in your state before making coverage decisions.